In pressurized gas systems, pressure exceeding the specified operating values is an important condition that must be controlled for system safety. A relief valve is a safety device that allows excess pressure in the system to be discharged in a controlled manner.
Pressure relief valves are particularly used in gas supply systems, gas stations, and industrial pipelines. They are activated when the system pressure exceeds the desired level.
A relief valve is a valve that automatically opens when the system pressure reaches a predetermined set pressure, allowing excess gas to be discharged.
Under normal operating conditions, the valve remains closed. When the system pressure reaches the preset value, the valve operates automatically without requiring any external energy source. When the pressure returns to normal operating conditions, the valve automatically closes again, preventing further gas flow.
The operating principle of a relief valve is based on the balance between system pressure and a preset spring force.
Thanks to this operating principle, a relief valve helps discharge excessive pressure in gas systems without requiring an external energy source. The ETV-D1 and ETV-S7 models are also proportional opening and fail-to-close types.
The primary function of relief valves in natural gas and other pressurized gas systems is to allow excess gas to be discharged when the pressure exceeds the specified level.
In this way, pressure relief valves help reduce the risk of system components being exposed to excessive pressure and contribute to maintaining safe operating conditions in gas systems.
Relief valves can be used in gas stations, gas supply systems, and industrial gas pipelines according to different operating pressures and system requirements.
The ESKA ETV-S7 is a safety relief valve used in gas supply systems to discharge excess gas when the system pressure exceeds the desired level.
When the system pressure reaches the preset value, the ETV-S7 automatically opens and allows excess gas to be discharged. When normal pressure conditions are restored, it automatically closes.
The ETV-S7 is suitable for use with natural gas, air, LPG, and pre-filtered non-corrosive gases.
The final technical specifications of the product should be evaluated according to the label on the product.
The primary advantage of the ETV-S7 is its ability to automatically activate when the system pressure exceeds the specified level and discharge excess pressure.
Thanks to its operation without an external energy source, it helps maintain the safety function against excessive pressure in gas systems. When the pressure returns to normal conditions, the valve automatically closes, eliminating the need for continuous user intervention.
You can explore our ETV-S7 product.
Gas pressure regulators and relief valves perform different functions. A regulator is used to reduce and control gas pressure to the desired operating level, while a relief valve discharges excess gas from the system when the pressure reaches the predetermined relief setting.
Therefore, a relief valve is not a pressure regulator but a safety device.
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